Bike Metro

You put in to addresses and the site will map out a route between the addresses. Nothing special you say, right? Well the site also give you a profile of the route, very cool. But it also give you the amount of pollution a vehicle would produce along the route, the amount of calories one will burn along the route, and the amount of money one will save by riding the route rather than driving. Plus each these categories can be customized based on ones personal statistics. It's only for California right now but they are looking to expand.